Luminescence and scintillation properties of Ce dope SrHfO3 based eutectics
Luminescence and scintillation properties of Ce dope SrHfO3 based eutectics
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Ce掺杂SrHfO3基共晶材料的发光和闪烁性能
DOI：
10.1016/j.optmat.2014.10.010
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发表时间：
2015
影响因子：
3.9
通讯作者：
A. Yoshikawa
中科院分区：
文献类型：
--
作者：
K. Kamada;S. Kurosawa;Y. Shoji;J. Pejchal;Y. Ohashi;Y. Yokota;A. Yoshikawa
采用微下拉(μ-Pd)法生长了Ce掺杂的SrHfO_3/SrAl_(12)O_(19)共晶，并研究了它们的定向凝固共晶体系。还研究了所获得的共晶结构、发光和闪烁性能。共晶相的生长速度为0.60~0.90 mm/min。在共晶中，Ce3+在410 nm处有4f-5d的发射。在241Am激发下，共晶显示出大约300千光子/5.5兆电子伏阿尔法射线的光产额。闪烁衰减时间为26.4 ns(45%)，慢衰减分量为263 ns(55%)。
Ce doped SrHfO3/SrAl12O19eutectics were grown by the micro pulling down (μ-PD) method and their directionally solidified eutectic system has been investigated. Investigations of obtained eutectic structure, luminescence and scintillation performances were also performed. Eutectics were grown at the speed of 0.60–0.90 mm/min. In the eutectics, Ce3+4f–5d emission was observed at 410 nm. The eutectics showed light yield of around 300 photon/5.5 meV alpha-ray by241Am excitation. Scintillation decay time was 26.4 ns (45%) with slower decay component of 263 ns (55%).